<template>
	<div>
		<!-- 面包屑导航区域 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
		  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>
		
		<!-- 卡片视图区域-->
		<el-card>
		  <!-- 搜索与添加区域 -->			
			<el-row :gutter="20">
				<el-col :span="8">
					<el-input placeholder="请输入内容"
					 v-model="queryInfo.query" 
					 clearable
					 @clear="getUserList">
					    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
					  </el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
				</el-col>
			</el-row>
			<!-- 用户列表区域 -->
			<el-table :data="userlist" border stripe>
				<el-table-column type="index"></el-table-column>
				<el-table-column label="姓名" prop="username"></el-table-column>
				<el-table-column label="邮箱" prop="email"></el-table-column>
				<el-table-column label="电话" prop="mobile"></el-table-column>
				<el-table-column label="角色" prop="role_name"></el-table-column>
				<el-table-column label="状态">
					<template slot-scope="scope">
						<!-- {{scope.row}} -->
						<el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
					</template>
				</el-table-column>
				<el-table-column label="操作" width="180px">
					<template slot-scope="scope">
						<!-- 修改按钮 -->
						<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
						<!-- 删除按钮 -->
						<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
						<!-- 分配角色按钮 -->
						<el-tooltip effect="dark" content="分配角色" placement="top" :enterable = "false">
						     <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
						</el-tooltip>
					</template>
				</el-table-column>
			</el-table>
			<!-- 分页区域 -->
			<el-pagination
			      @size-change="handleSizeChange"
			      @current-change="handleCurrentChange"
			      :current-page="queryInfo.pagenum"
			      :page-sizes="[1, 2, 5, 10]"
			      :page-size="queryInfo.pagesize"
			      layout="total, sizes, prev, pager, next, jumper"
			      :total="total">
			    </el-pagination>			
		</el-card>
        
		<!-- 添加用户的对话框 -->
		<el-dialog
		  title="添加用户"
		  :visible.sync="addDialogVisible"
		  width="50%"@close="addDialogClosed">
		  <!-- 内容主体区域 -->
		  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
		    <el-form-item label="用户名" prop="username">
		      <el-input v-model="addForm.username"></el-input>
		    </el-form-item>
			
			<el-form-item label="密码" prop="password">
			  <el-input v-model="addForm.password"></el-input>
			</el-form-item>
			
			<el-form-item label="邮箱" prop="email">
			  <el-input v-model="addForm.email"></el-input>
			</el-form-item>
			
			<el-form-item label="手机号" prop="mobile">
			  <el-input v-model="addForm.mobile"></el-input>
			</el-form-item>
		  </el-form>
		  <!-- 底部区域 -->
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="addDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="addUser">确 定</el-button>
		  </span>
		</el-dialog>
		
		<!-- 修改用户的对话框 -->
		<el-dialog
		  title="修改用户"
		  :visible.sync="editDialogVisible"
		  width="50%" @close="editDialogClosed">	  
		  <el-form :model="editFrom" :rules="editFromRules" ref="editFromRef" label-width="70px">
		    <el-form-item label="用户名">
		      <el-input v-model="editFrom.username" disabled></el-input>
		    </el-form-item>
			
			<el-form-item label="邮箱" prop="email">
			  <el-input v-model="editFrom.email"></el-input>
			</el-form-item>
			
			<el-form-item label="手机号" prop="mobile">
			  <el-input v-model="editFrom.mobile"></el-input>
			</el-form-item>			
		  </el-form>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="editDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="editUserInfo">确 定</el-button>
		  </span>
		</el-dialog>
	   <!-- 分配角色的对话框 -->
	   <el-dialog
	     title="分配角色"
	     :visible.sync="setRoleDialogVisible"
	     width="50%" @close="setRoleDialogClosed">
	    <div>
			<p>当前的用户：{{userInfo.username}}</p>
			<p>当前的角色：{{userInfo.role_name}}</p>
			<p>分配新角色：
			 <el-select v-model="selectedRoleId" placeholder="请选择">
			    <el-option
			      v-for="item in rolesList"
			      :key="item.id"
			      :label="item.roleName"
			      :value="item.id">
			    </el-option>
			  </el-select>
			</p>
		</div>
	     <span slot="footer" class="dialog-footer">
	       <el-button @click="setRoleDialogVisible = false">取 消</el-button>
	       <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
	     </span>
	   </el-dialog>
	</div>
</template>

<script>
	export default{
		data() {
			//验证邮箱的规则
			var checkEmail = (rule,value,cb) => {
				//验证邮箱的正则表达式
				const regEmail= /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/
				// /^([a-zA-Z0-9_-])+@(
				// [a-zA-Z0-9_-])+([a-zA-Z0-9_-])+/
				
				if(regEmail.test(value)){
					//合法的邮箱
					return cb()
				}
				
				cb(new Error('请输入合法的邮箱'))
			}
			//验证手机号的规则
			var checkMobile = (rule,value,cb) =>{
				//验证手机号的正则表达式
				const regMobile= /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
				// /^(0|86|17951)?(13[0-9]|15
				// [0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
				
				if(regMobile.test(value)){
					return cb()
				}
				
				cb(new Error('请输入合法的手机号'))
			}
			return{
				//获取用户列表的参数对象
				queryInfo:{
					query:'',
					//当前的页数
					pagenum: 1,
					//当前每页显示多少条数据
					pagesize: 2
				},
				userlist:[],
				total: 0,
				// 控制添加用户对话框的显示与隐藏
				addDialogVisible: false,
				//添加用户的表单数据
				addForm:{
					username:'',
					password:'',
					email:'',
					mobile:''
				},
				//添加表单的验证规则对象
				addFormRules:{
					username:[{required: true,
					message:'请输入用户名',
					trigger:'blur'},
					{min:3,max:10,
					message:'用户名长度在3~10个字符之间',
					trigger:'blur'}],
					
					password:[{required: true,
					message:'请输入密码',
					trigger:'blur'},
					{min:6,max:15,
					message:'用户名长度在6~15个字符之间',
					trigger:'blur'}],
					
					email:[{required: true,
					message:'请输入邮箱',
					trigger:'blur'},
					{validator:checkEmail,
					trigger:'blur'}],
					
					mobile:[{required: true,
					message:'请输入手机号',
					trigger:'blur'},
					{validator:checkMobile,
					trigger:'blur'}]
				},
				// 控制修改用户对话框的显示与隐藏
				editDialogVisible:false,
				//查询到的用户信息对象
				editFrom:{},
				//修改表单的验证规则对象
				editFromRules:{
					email:[
						{required:true,message:'请输入用户邮箱',trigger:'blur'},
						{validator:checkEmail,trigger:'blur'}
					],
					mobile:[
						{required:true,message:'请输入用户手机号',trigger:'blur'},
						{validator:checkMobile,trigger:'blur'}
					]
				},
			    //控制分配角色对话框的显示与隐藏
				setRoleDialogVisible:false,
				//需要被分配角色的用户信息
				userInfo:{},
				//所以角色的数据列表
				rolesList:[],
				//已选中的角色id值
				selectedRoleId:''
			}
		},
		created() {
			this.getUserList()
		},
		methods:{
			async getUserList(){
			const { data: res} = await this.$http.get('users',{ params:this.queryInfo })
			if(res.meta.status !==200){
				return this.$message.error('获取用户列表失败')
			}
			this.userlist = res.data.users
			this.total = res.data.total
			console.log(res)
			},
			//监听 pagesize 改变的事件
			handleSizeChange(newSize) {
				//console.log(newSize)
				this.queryInfo.pagesize = newSize
				this.getUserList()
			},
			//监听 页码值 改变的事件
			handleCurrentChange(newPage){
				//console.log(newPage)
				this.queryInfo.pagenum = newPage
				this.getUserList()
			},
			//监听 switch 开关状态的改变
			async userStateChanged(userinfo){
				console.log(userinfo)
			    const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
				if(res.meta.status !== 200){
					userinfo.mg_state= !userinfo.mg_state
					return this.$message.error('更新用户状态失败！')
				}
				this.$message.success('更新用户状态成功！')
			},
			//监听添加用户对话框的关闭事件
			addDialogClosed(){
				this.$refs.addFormRef.resetFields()
			},
			//点击按钮，添加新用户
			addUser(){
				this.$refs.addFormRef.validate(async valid=>{
					if(!valid)return
					//可以发起添加用户的网络请求
					const {data: res} = await this.$http.post('users',this.addForm)
					
					if(res.meta.status !== 201){
						this.$message.error('添加用户失败！')
					}
					this.$message.success('添加用户成功！')
					//隐藏添加用户的对话框
					this.addDialogVisible = false
					//重新获取用户列表数据
					this.getUserList()
				})
			},
			//展示编辑用户的对话框
			 async showEditDialog(id){
				const {data: res} = await this.$http.get('users/'+ id)
				if(res.meta.status !== 200){
					return this.$message.error('查询用户信息失败！')
				}
				
				this.editFrom =res.data
				this.editDialogVisible = true
			},
			//监听修改用户对话框的关闭事件
			editDialogClosed(){
				this.$refs.editFromRef.resetFields()
			},
			//修改用户信息并提交
			editUserInfo(){
				this.$refs.editFromRef.validate(async valid => {
					if(!valid)return
					//发起修改用户信息的数据请求
					const {data: res}= await this.$http.put('users/'+this.editFrom.id,{
						email:this.editFrom.email,
						mobile:this.editFrom.mobile
					})
					
					if(res.meta.status !== 200){
						return this.$message.error('更新用户信息失败！')
					}
					
					//关闭对话框
					this.editDialogVisible = false
					//刷新数据列表
					this.getUserList()
					//提示修改成功
					this.$message.success('更新用户信息成功!')
				})
			},
			//根据Id删除对应的用户信息
			async removeUserById(id) {
				//弹框询问用户是否删除数据
				const confirmResult =await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
				          confirmButtonText: '确定',
				          cancelButtonText: '取消',
				          type: 'warning'
				        }).catch(err => err)
						//如果用户确认删除，则返回值为字符串 confirm
						//如果用户取消了删除，则返回值为字符串 cancel
						//console.log(confirmResult)
						if(confirmResult !=='confirm'){
							return this.$message.info('已取消了删除！')
						}
						//console.log('确认了删除')
						const {data: res} = await this.$http.delete('users/'+id)
						
						if(res.meta.status !== 200){
							return this.$message.error('删除用户失败！')
						}
					    this.$message.success('删除用户成功！')
						//刷新数据列表
						this.getUserList()
						
			},
		    //展示分配角色的对话框
		    async setRole(userInfo){
				this.userInfo = userInfo
				
				//在展示对话框之前，获取所有的角色列表
				const {data: res} = await this.$http.get('roles')
				if(res.meta.status !== 200){
					return this.$message.error('获取角色列表失败！')
				}
				this.rolesList = res.data
				
				this.setRoleDialogVisible = true
			},
			//点击按钮分配角色
			async saveRoleInfo(){
				if(!this.selectedRoleId){
					return this.$message.error("请选择要分配的角色！")
				}
				
				const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,
				{
					rid:this.selectedRoleId
				})
				
				if(res.meta.status !== 200){
					return this.$message.error('更新角色失败！')
				}
				 this.$message.success('更新角色成功！')
				 this.getUserList()
				 this.setRoleDialogVisible = false
			},
			//监听分配角色对话框的关闭事件
			setRoleDialogClosed(){
				this.selectedRoleId = ''
				this.userInfo = {}
			}
		}
	}
</script>

<style>
</style>
